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View Full Version : Dual, liquid cooled peltiers...need help!


SUlfUR-CyCLoNe
09-23-01, 07:53 PM
I'm looking into a cooling system with dual, liquid cooled peltiers. I want use a Lian Li aluminum case using a dual peltiers that will be cooled by some type of liquid cooling solution. I want to achieve sub-zero temps with this system. I need some advice on anti-condensation techniques (if someone could give me a link to an article pertaining to anti-condensation I would be very happy:) ) and I need to know what liquid would work best in a sub-zero enviro. I've heard ammonia is excellent for sub-zero temps, but what other liquids do you guys know of that I could use?
I also would like to know if using dual pelts would be worth it, could I reach the same results with a single pelt?
Also, if anyone has any ideas for a sub-zero system that I could try that would work really well it would be much appreciated.

-SUlfUR

fuzzba11
09-23-01, 07:57 PM
Sounds hardcore, but I doubt you'll pull it off without spending $500 or more...haven't heard of using Ammonia, but peeeyew! Just hope you don't get a leak! ;)

I've seen people using silicone sprays and using that all over their motherboard.

FuzzyNY
09-23-01, 08:01 PM
try a forum search by keyword "condensation", there are TONS of info and links about how to dealing with it :)




Fuzz

SUlfUR-CyCLoNe
09-23-01, 08:07 PM
at the moment I'm not worried about the money, I'll worry about that when I know what I'm aiming for. I've heard of people using this stuff (forget what it's called off the top of my head, but I know they use it to insulate aircraft electronics and you use a black light to find leaks) so I'll be able to shut the system down if I see a leak (I'd put in a window and then some black lights and the case would glow green...thanks for the idea rockstar!:D )
I don't want to go with a nitro setup because I don't like the idea of risking a CMOS battery freeze, but if anyone else knows of some other liquids that would work great it'd be much appreciated.

-SUlfUR

fatshlink
09-23-01, 08:14 PM
:eek: are you planing to use the pelts on the proc or radiator?

and the uv reflictive dye is called dye-lite you can get it from www.overclock-watercool.com

SUlfUR-CyCLoNe
09-23-01, 08:37 PM
Thanx for the name AND the link :D

Not sure yet where I'll use them, I want to see if I can use them both on the proc, but I did think about putting one on the radiator. Would i get better temps if I had one on the proc and one on the radiator or does it matter? This is my first venture into sub-zero cooling so I have quite a few things i want to get sorted, thanx to everyone that's helped so far!;)

Anyone got a link that explains stuff about cooling liquids? I need something highly efficient. What could I use to combat corrsion and surface tension if I used something other than water, or would water wetter work with almost any liquid.... no antifreeze please lol

-SUlfUR

Warlord2
09-23-01, 08:41 PM
who cares how much money you spend on cooling

I know I have spent over $300 more thin I needed to on it........



Im just in it to learn more about computers and to have a good time

SUlfUR-CyCLoNe
09-24-01, 12:03 AM
lol.. I was hoping that no one would have to do that... but your not me....

Thanx for the support. Hopefully I won't have to spend over $1k, I'd have to come up something really exoctic if I were to spend that much.
I'm looking at about $600-$700 right now:)

-SUlfUR

fatshlink
09-24-01, 12:07 AM
i dont know if you are wanting to build you cooling system or looking for something real effective. but if you want mad cooling look at www.vapochill.com. its a case whith basicly a deep freez entirly on the proc

Colin
09-24-01, 12:23 AM
You can read about my dual pelt adventures here. (http://forums.overclockers.ws/vb/showthread.php?s=&threadid=14276&highlight=pelts)

As for insultaion:

Coat your the inside of the socket, area surrounding the socket and the back of the board behind the socket with your choice of conformal coating and insulate with neoprene. Remove the feet from you CPU and coat the exposed circuitry with conformal coating. Don't forget the dielectric grease in the pin holes of the ZIF socket. You may want to cut a thin strip of neoprene to cover the locking lever of the ZIF socket. This is not shown in any of the following photos.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51738695

Make a blanket out of 1/16" neoprene to cover the whole package.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51738692

If you are using one pelt, you will need to make a neoprene gasket to surround the pelt between the block and cold plate. With dual pelts, you can just run a bead of silicone around the pelts between the block and cold plate. Then surround the coldplate with neoprene. I found it easier to insulate the whole block and cold plate as a package. Note the 1/16" CPU blanket in the previous photo is also in the photo below. DO NOT use two sheets of 1/16" neoprene.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=50217756

The completed package with the block installed on the motherboard.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51743929